Florim porcelain 3200x1600mm, but you may find 2400x1200 more easily available. If thats way beyond what you imagined, 1200x600 are also quite popular nowadays.
Only joking. The most common way is to use an electric cutter like the Rubi TC180 (other brands available) with a guide rail and couple of extensions to hit the full width of the tile. But not many tilers deal with tiles this large so you will need to check tilers in your area that may have the gear to do it.
The Florims are available through Casa Ceramica in Manchester. There may be other stockists but that is the only one I know of off the top of my head. You could also have a look at a company called Porcelthin in London. They also specialise in large format thin porcelain. Don't know if they go up to 3200mm but worth asking, and they have details of approved installers, some of which I know have fitted the florims before.
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